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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 21, 1998. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 8252 | S29 | W03 | 03 | 0000 | BETA | Jun 22, 1998 | Jun 29, 1998 | Jul 13, 1998 |
| № 8251 | N16 | W39 | 06 | 0010 | BETA | Jun 19, 1998 | Jun 26, 1998 | Jul 10, 1998 |
| № 8249 | S27 | E10 | 01 | 0040 | ALPHA | Jun 23, 1998 | Jun 30, 1998 | Jul 14, 1998 |
| № 8244 | N35 | W62 | 03 | 0010 | BETA | Jun 17, 1998 | Jun 24, 1998 | Jul 9, 1998 |
| № 8243 | N18 | W25 | 17 | 0220 | BETA | Jun 20, 1998 | Jun 27, 1998 | Jul 11, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to June 1998. The gray background is the average SSN index.
